QBManager

CHXI07:EQUILIBRIUM

314434 How many of the following combinations of reactants will react less than \({\mathrm{2 \%}}\) of theoretically possible extent?
\[\begin{array}{l}
{\rm{(a)C}}{{\rm{H}}_{\rm{3}}}{\rm{COOH + }}{{\rm{H}}_{\rm{2}}}{\rm{O}}{\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} \\
{\rm{(b)C}}{{\rm{H}}_{\rm{3}}}{\rm{CO}}{{\rm{O}}^ \ominus }{\rm{ + }}{{\rm{H}}_{\rm{2}}}{\rm{O}}\,\\
{\rm{(c)C}}{{\rm{H}}_{\rm{3}}}{\rm{CO}}{{\rm{O}}^ \ominus }{\rm{ + }}{{\rm{H}}_{\rm{3}}}{{\rm{O}}^ \oplus }\\
{\rm{(d)C}}{{\rm{H}}_{\rm{3}}}{\rm{COOH + KOH}}\\
{\rm{(e)C}}{{\rm{H}}_{\rm{3}}}{\rm{COOK + HCl}}({\rm{aq}}){\mkern 1mu} {\mkern 1mu} {\mkern 1mu} \\
{\rm{(f)HCl}}({\rm{g}}){\rm{ + }}{{\rm{H}}_{\rm{2}}}{\rm{O}}\\
{\rm{(g)C}}{{\rm{l}}^{\rm{ - }}}{\rm{ + }}{{\rm{H}}_{\rm{3}}}{{\rm{O}}^ \oplus }{\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} \,\,\,\,\,{\rm{(h)C}}{{\rm{l}}^ \ominus }{\rm{ + }}{{\rm{H}}_{\rm{2}}}{\rm{O}}\\
{\rm{(i)}}\mathop {{\rm{NH}}}\limits^ \oplus {{\rm{H}}_{\rm{4}}}{\rm{ + KOH}}{\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\rm{(j)}}\mathop {\rm{N}}\limits^ \oplus {{\rm{H}}_{\rm{4}}}{\rm{ + }}\mathop {\rm{O}}\limits^ \ominus {\rm{H}}\\
{\rm{(k)N}}{{\rm{H}}_{\rm{3}}}{\rm{ + }}{{\rm{H}}_{\rm{2}}}{\rm{O}}{\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} \,{\mkern 1mu} {\rm{(l)}}{\mkern 1mu} {\rm{N}}{{\rm{H}}_{\rm{3}}} + {{\rm{H}}_{\rm{3}}}{{\rm{O}}^ \oplus }\\
{\rm{(m)}}{\mkern 1mu} {\rm{N}}{{\rm{H}}_{\rm{3}}}{\rm{ + HCl}}({\rm{aq}}){\mkern 1mu} {\mkern 1mu} \,{\rm{(n)}}{\mkern 1mu} {{\rm{K}}^ \oplus } + \mathop {\rm{O}}\limits^ \ominus {\rm{H}}
\end{array}\]

1 6

2 2

3 5

4 3

Explanation:

(a), (b), (g), (h) and (k)
\[{\begin{array}{*{20}{l}}
{({\text{a}}){\mkern 1mu} {\text{C}}{{\text{H}}_{\text{3}}}{\text{COOH + }}{{\text{H}}_{\text{2}}}{\text{O}} \to {{\text{H}}_{\text{3}}}{{\text{O}}^ \oplus }{\text{ + C}}{{\text{H}}_{\text{3}}}{\text{CO}}{{\text{O}}^ \ominus }{\mkern 1mu} ( < {\text{2}}\% )} \\
{{\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {{\text{W}}_{\text{A}}}{\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} } \\
{}
\end{array}}\]
(b)\({\rm{C}}{{\rm{H}}_{\rm{3}}}{\rm{CO}}{{\rm{O}}^ \ominus }{\rm{ + }}{{\rm{H}}_{\rm{2}}}{\rm{O}} \to {\rm{C}}{{\rm{H}}_{\rm{3}}}{\rm{COOH + }}\mathop {\rm{O}}\limits^ \ominus {\rm{H( < 2\% )}}\)
\({{\rm{Salt}}\,\,{\rm{of}}\,{{\rm{W}}_{\rm{A}}}}\)
\[{\begin{array}{*{20}{l}}
{({\rm{g}}){\rm{C}}{{\rm{l}}^ \ominus }{\rm{ + }}{{\rm{H}}_{\rm{3}}}{{\rm{O}}^ \oplus } \to {\rm{No}}{\mkern 1mu} {\rm{reaction}}}\\
{({\rm{h}}){\rm{C}}{{\rm{l}}^ \ominus }{\rm{ + }}{{\rm{H}}_{\rm{2}}}{\rm{O}} \to {\rm{No}}{\mkern 1mu} {\rm{reaction}}}\\
{({\rm{k}}){\rm{N}}{{\rm{H}}_{\rm{3}}}{\rm{ + }}{{\rm{H}}_{\rm{2}}}{\rm{O}} \to \mathop {\rm{N}}\limits^ \oplus {{\rm{H}}_{\rm{4}}}{\rm{ + }}\mathop {\rm{O}}\limits^ \ominus {\rm{H}}}\\
{({\rm{n)}}{{\rm{K}}^ \oplus }{\rm{ + }}\mathop {\rm{O}}\limits^ \ominus {\rm{H}} \to {\rm{No}}{\mkern 1mu} {\rm{reaction}}.}
\end{array}}\]

CHXI07:EQUILIBRIUM

314435 Which of the following species acts as Bronsted base but not as acid ?

1 \(\mathrm{CH}_{3} \mathrm{COOH}\)

2 \(\mathrm{HCO}_{3}^{-}\)

3 \(\mathrm{H}_{2} \mathrm{PO}_{2}^{-}\)

4 \(\mathrm{H}_{2} \mathrm{PO}_{3}^{-}\)

CHXI07:EQUILIBRIUM

314436 In \(\mathrm{HS}^{-}, \mathrm{I}^{-}, \mathrm{RNH}_{2}\) and \(\mathrm{NH}_{3}\) order of proton accepting tendency will be

1 \({{\text{I}}^ - } > {\text{N}}{{\text{H}}_3} > {\text{RN}}{{\text{H}}_2} > {\text{H}}{{\text{S}}^ - }\)

2 \(\mathrm{NH}_{3}>\mathrm{RNH}_{2}>\mathrm{HS}^{-}>\mathrm{I}^{-}\)

3 \(\mathrm{RNH}_{2}>\mathrm{NH}_{3}>\mathrm{HS}^{-}>\mathrm{I}^{-}\)

4 \(\mathrm{HS}^{-}>\mathrm{RNH}_{2}>\mathrm{NH}_{3}>\mathrm{I}^{-}\)

CHXI07:EQUILIBRIUM

314437 Ammonia gas dissolves in water to form \(\mathrm{NH}_{4} \mathrm{OH}\). In this reaction, water acts as

1 Conjugate base

2 A non - polar molecule

3 An acid

4 A base

AIIMS - 2012

CHXI07:EQUILIBRIUM

314434 How many of the following combinations of reactants will react less than \({\mathrm{2 \%}}\) of theoretically possible extent?
\[\begin{array}{l}
{\rm{(a)C}}{{\rm{H}}_{\rm{3}}}{\rm{COOH + }}{{\rm{H}}_{\rm{2}}}{\rm{O}}{\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} \\
{\rm{(b)C}}{{\rm{H}}_{\rm{3}}}{\rm{CO}}{{\rm{O}}^ \ominus }{\rm{ + }}{{\rm{H}}_{\rm{2}}}{\rm{O}}\,\\
{\rm{(c)C}}{{\rm{H}}_{\rm{3}}}{\rm{CO}}{{\rm{O}}^ \ominus }{\rm{ + }}{{\rm{H}}_{\rm{3}}}{{\rm{O}}^ \oplus }\\
{\rm{(d)C}}{{\rm{H}}_{\rm{3}}}{\rm{COOH + KOH}}\\
{\rm{(e)C}}{{\rm{H}}_{\rm{3}}}{\rm{COOK + HCl}}({\rm{aq}}){\mkern 1mu} {\mkern 1mu} {\mkern 1mu} \\
{\rm{(f)HCl}}({\rm{g}}){\rm{ + }}{{\rm{H}}_{\rm{2}}}{\rm{O}}\\
{\rm{(g)C}}{{\rm{l}}^{\rm{ - }}}{\rm{ + }}{{\rm{H}}_{\rm{3}}}{{\rm{O}}^ \oplus }{\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} \,\,\,\,\,{\rm{(h)C}}{{\rm{l}}^ \ominus }{\rm{ + }}{{\rm{H}}_{\rm{2}}}{\rm{O}}\\
{\rm{(i)}}\mathop {{\rm{NH}}}\limits^ \oplus {{\rm{H}}_{\rm{4}}}{\rm{ + KOH}}{\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\rm{(j)}}\mathop {\rm{N}}\limits^ \oplus {{\rm{H}}_{\rm{4}}}{\rm{ + }}\mathop {\rm{O}}\limits^ \ominus {\rm{H}}\\
{\rm{(k)N}}{{\rm{H}}_{\rm{3}}}{\rm{ + }}{{\rm{H}}_{\rm{2}}}{\rm{O}}{\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} \,{\mkern 1mu} {\rm{(l)}}{\mkern 1mu} {\rm{N}}{{\rm{H}}_{\rm{3}}} + {{\rm{H}}_{\rm{3}}}{{\rm{O}}^ \oplus }\\
{\rm{(m)}}{\mkern 1mu} {\rm{N}}{{\rm{H}}_{\rm{3}}}{\rm{ + HCl}}({\rm{aq}}){\mkern 1mu} {\mkern 1mu} \,{\rm{(n)}}{\mkern 1mu} {{\rm{K}}^ \oplus } + \mathop {\rm{O}}\limits^ \ominus {\rm{H}}
\end{array}\]

1 6

2 2

3 5

4 3

Explanation:

(a), (b), (g), (h) and (k)
\[{\begin{array}{*{20}{l}}
{({\text{a}}){\mkern 1mu} {\text{C}}{{\text{H}}_{\text{3}}}{\text{COOH + }}{{\text{H}}_{\text{2}}}{\text{O}} \to {{\text{H}}_{\text{3}}}{{\text{O}}^ \oplus }{\text{ + C}}{{\text{H}}_{\text{3}}}{\text{CO}}{{\text{O}}^ \ominus }{\mkern 1mu} ( < {\text{2}}\% )} \\
{{\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {{\text{W}}_{\text{A}}}{\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} } \\
{}
\end{array}}\]
(b)\({\rm{C}}{{\rm{H}}_{\rm{3}}}{\rm{CO}}{{\rm{O}}^ \ominus }{\rm{ + }}{{\rm{H}}_{\rm{2}}}{\rm{O}} \to {\rm{C}}{{\rm{H}}_{\rm{3}}}{\rm{COOH + }}\mathop {\rm{O}}\limits^ \ominus {\rm{H( < 2\% )}}\)
\({{\rm{Salt}}\,\,{\rm{of}}\,{{\rm{W}}_{\rm{A}}}}\)
\[{\begin{array}{*{20}{l}}
{({\rm{g}}){\rm{C}}{{\rm{l}}^ \ominus }{\rm{ + }}{{\rm{H}}_{\rm{3}}}{{\rm{O}}^ \oplus } \to {\rm{No}}{\mkern 1mu} {\rm{reaction}}}\\
{({\rm{h}}){\rm{C}}{{\rm{l}}^ \ominus }{\rm{ + }}{{\rm{H}}_{\rm{2}}}{\rm{O}} \to {\rm{No}}{\mkern 1mu} {\rm{reaction}}}\\
{({\rm{k}}){\rm{N}}{{\rm{H}}_{\rm{3}}}{\rm{ + }}{{\rm{H}}_{\rm{2}}}{\rm{O}} \to \mathop {\rm{N}}\limits^ \oplus {{\rm{H}}_{\rm{4}}}{\rm{ + }}\mathop {\rm{O}}\limits^ \ominus {\rm{H}}}\\
{({\rm{n)}}{{\rm{K}}^ \oplus }{\rm{ + }}\mathop {\rm{O}}\limits^ \ominus {\rm{H}} \to {\rm{No}}{\mkern 1mu} {\rm{reaction}}.}
\end{array}}\]

CHXI07:EQUILIBRIUM

314435 Which of the following species acts as Bronsted base but not as acid ?

1 \(\mathrm{CH}_{3} \mathrm{COOH}\)

2 \(\mathrm{HCO}_{3}^{-}\)

3 \(\mathrm{H}_{2} \mathrm{PO}_{2}^{-}\)

4 \(\mathrm{H}_{2} \mathrm{PO}_{3}^{-}\)

CHXI07:EQUILIBRIUM

314436 In \(\mathrm{HS}^{-}, \mathrm{I}^{-}, \mathrm{RNH}_{2}\) and \(\mathrm{NH}_{3}\) order of proton accepting tendency will be

1 \({{\text{I}}^ - } > {\text{N}}{{\text{H}}_3} > {\text{RN}}{{\text{H}}_2} > {\text{H}}{{\text{S}}^ - }\)

2 \(\mathrm{NH}_{3}>\mathrm{RNH}_{2}>\mathrm{HS}^{-}>\mathrm{I}^{-}\)

3 \(\mathrm{RNH}_{2}>\mathrm{NH}_{3}>\mathrm{HS}^{-}>\mathrm{I}^{-}\)

4 \(\mathrm{HS}^{-}>\mathrm{RNH}_{2}>\mathrm{NH}_{3}>\mathrm{I}^{-}\)

CHXI07:EQUILIBRIUM

314437 Ammonia gas dissolves in water to form \(\mathrm{NH}_{4} \mathrm{OH}\). In this reaction, water acts as

1 Conjugate base

2 A non - polar molecule

3 An acid

4 A base

AIIMS - 2012

CHXI07:EQUILIBRIUM

314434 How many of the following combinations of reactants will react less than \({\mathrm{2 \%}}\) of theoretically possible extent?
\[\begin{array}{l}
{\rm{(a)C}}{{\rm{H}}_{\rm{3}}}{\rm{COOH + }}{{\rm{H}}_{\rm{2}}}{\rm{O}}{\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} \\
{\rm{(b)C}}{{\rm{H}}_{\rm{3}}}{\rm{CO}}{{\rm{O}}^ \ominus }{\rm{ + }}{{\rm{H}}_{\rm{2}}}{\rm{O}}\,\\
{\rm{(c)C}}{{\rm{H}}_{\rm{3}}}{\rm{CO}}{{\rm{O}}^ \ominus }{\rm{ + }}{{\rm{H}}_{\rm{3}}}{{\rm{O}}^ \oplus }\\
{\rm{(d)C}}{{\rm{H}}_{\rm{3}}}{\rm{COOH + KOH}}\\
{\rm{(e)C}}{{\rm{H}}_{\rm{3}}}{\rm{COOK + HCl}}({\rm{aq}}){\mkern 1mu} {\mkern 1mu} {\mkern 1mu} \\
{\rm{(f)HCl}}({\rm{g}}){\rm{ + }}{{\rm{H}}_{\rm{2}}}{\rm{O}}\\
{\rm{(g)C}}{{\rm{l}}^{\rm{ - }}}{\rm{ + }}{{\rm{H}}_{\rm{3}}}{{\rm{O}}^ \oplus }{\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} \,\,\,\,\,{\rm{(h)C}}{{\rm{l}}^ \ominus }{\rm{ + }}{{\rm{H}}_{\rm{2}}}{\rm{O}}\\
{\rm{(i)}}\mathop {{\rm{NH}}}\limits^ \oplus {{\rm{H}}_{\rm{4}}}{\rm{ + KOH}}{\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\rm{(j)}}\mathop {\rm{N}}\limits^ \oplus {{\rm{H}}_{\rm{4}}}{\rm{ + }}\mathop {\rm{O}}\limits^ \ominus {\rm{H}}\\
{\rm{(k)N}}{{\rm{H}}_{\rm{3}}}{\rm{ + }}{{\rm{H}}_{\rm{2}}}{\rm{O}}{\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} \,{\mkern 1mu} {\rm{(l)}}{\mkern 1mu} {\rm{N}}{{\rm{H}}_{\rm{3}}} + {{\rm{H}}_{\rm{3}}}{{\rm{O}}^ \oplus }\\
{\rm{(m)}}{\mkern 1mu} {\rm{N}}{{\rm{H}}_{\rm{3}}}{\rm{ + HCl}}({\rm{aq}}){\mkern 1mu} {\mkern 1mu} \,{\rm{(n)}}{\mkern 1mu} {{\rm{K}}^ \oplus } + \mathop {\rm{O}}\limits^ \ominus {\rm{H}}
\end{array}\]

1 6

2 2

3 5

4 3

Explanation:

(a), (b), (g), (h) and (k)
\[{\begin{array}{*{20}{l}}
{({\text{a}}){\mkern 1mu} {\text{C}}{{\text{H}}_{\text{3}}}{\text{COOH + }}{{\text{H}}_{\text{2}}}{\text{O}} \to {{\text{H}}_{\text{3}}}{{\text{O}}^ \oplus }{\text{ + C}}{{\text{H}}_{\text{3}}}{\text{CO}}{{\text{O}}^ \ominus }{\mkern 1mu} ( < {\text{2}}\% )} \\
{{\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {{\text{W}}_{\text{A}}}{\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} } \\
{}
\end{array}}\]
(b)\({\rm{C}}{{\rm{H}}_{\rm{3}}}{\rm{CO}}{{\rm{O}}^ \ominus }{\rm{ + }}{{\rm{H}}_{\rm{2}}}{\rm{O}} \to {\rm{C}}{{\rm{H}}_{\rm{3}}}{\rm{COOH + }}\mathop {\rm{O}}\limits^ \ominus {\rm{H( < 2\% )}}\)
\({{\rm{Salt}}\,\,{\rm{of}}\,{{\rm{W}}_{\rm{A}}}}\)
\[{\begin{array}{*{20}{l}}
{({\rm{g}}){\rm{C}}{{\rm{l}}^ \ominus }{\rm{ + }}{{\rm{H}}_{\rm{3}}}{{\rm{O}}^ \oplus } \to {\rm{No}}{\mkern 1mu} {\rm{reaction}}}\\
{({\rm{h}}){\rm{C}}{{\rm{l}}^ \ominus }{\rm{ + }}{{\rm{H}}_{\rm{2}}}{\rm{O}} \to {\rm{No}}{\mkern 1mu} {\rm{reaction}}}\\
{({\rm{k}}){\rm{N}}{{\rm{H}}_{\rm{3}}}{\rm{ + }}{{\rm{H}}_{\rm{2}}}{\rm{O}} \to \mathop {\rm{N}}\limits^ \oplus {{\rm{H}}_{\rm{4}}}{\rm{ + }}\mathop {\rm{O}}\limits^ \ominus {\rm{H}}}\\
{({\rm{n)}}{{\rm{K}}^ \oplus }{\rm{ + }}\mathop {\rm{O}}\limits^ \ominus {\rm{H}} \to {\rm{No}}{\mkern 1mu} {\rm{reaction}}.}
\end{array}}\]

CHXI07:EQUILIBRIUM

314435 Which of the following species acts as Bronsted base but not as acid ?

1 \(\mathrm{CH}_{3} \mathrm{COOH}\)

2 \(\mathrm{HCO}_{3}^{-}\)

3 \(\mathrm{H}_{2} \mathrm{PO}_{2}^{-}\)

4 \(\mathrm{H}_{2} \mathrm{PO}_{3}^{-}\)

CHXI07:EQUILIBRIUM

314436 In \(\mathrm{HS}^{-}, \mathrm{I}^{-}, \mathrm{RNH}_{2}\) and \(\mathrm{NH}_{3}\) order of proton accepting tendency will be

1 \({{\text{I}}^ - } > {\text{N}}{{\text{H}}_3} > {\text{RN}}{{\text{H}}_2} > {\text{H}}{{\text{S}}^ - }\)

2 \(\mathrm{NH}_{3}>\mathrm{RNH}_{2}>\mathrm{HS}^{-}>\mathrm{I}^{-}\)

3 \(\mathrm{RNH}_{2}>\mathrm{NH}_{3}>\mathrm{HS}^{-}>\mathrm{I}^{-}\)

4 \(\mathrm{HS}^{-}>\mathrm{RNH}_{2}>\mathrm{NH}_{3}>\mathrm{I}^{-}\)

CHXI07:EQUILIBRIUM

314437 Ammonia gas dissolves in water to form \(\mathrm{NH}_{4} \mathrm{OH}\). In this reaction, water acts as

1 Conjugate base

2 A non - polar molecule

3 An acid

4 A base

AIIMS - 2012

CHXI07:EQUILIBRIUM

314434 How many of the following combinations of reactants will react less than \({\mathrm{2 \%}}\) of theoretically possible extent?
\[\begin{array}{l}
{\rm{(a)C}}{{\rm{H}}_{\rm{3}}}{\rm{COOH + }}{{\rm{H}}_{\rm{2}}}{\rm{O}}{\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} \\
{\rm{(b)C}}{{\rm{H}}_{\rm{3}}}{\rm{CO}}{{\rm{O}}^ \ominus }{\rm{ + }}{{\rm{H}}_{\rm{2}}}{\rm{O}}\,\\
{\rm{(c)C}}{{\rm{H}}_{\rm{3}}}{\rm{CO}}{{\rm{O}}^ \ominus }{\rm{ + }}{{\rm{H}}_{\rm{3}}}{{\rm{O}}^ \oplus }\\
{\rm{(d)C}}{{\rm{H}}_{\rm{3}}}{\rm{COOH + KOH}}\\
{\rm{(e)C}}{{\rm{H}}_{\rm{3}}}{\rm{COOK + HCl}}({\rm{aq}}){\mkern 1mu} {\mkern 1mu} {\mkern 1mu} \\
{\rm{(f)HCl}}({\rm{g}}){\rm{ + }}{{\rm{H}}_{\rm{2}}}{\rm{O}}\\
{\rm{(g)C}}{{\rm{l}}^{\rm{ - }}}{\rm{ + }}{{\rm{H}}_{\rm{3}}}{{\rm{O}}^ \oplus }{\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} \,\,\,\,\,{\rm{(h)C}}{{\rm{l}}^ \ominus }{\rm{ + }}{{\rm{H}}_{\rm{2}}}{\rm{O}}\\
{\rm{(i)}}\mathop {{\rm{NH}}}\limits^ \oplus {{\rm{H}}_{\rm{4}}}{\rm{ + KOH}}{\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\rm{(j)}}\mathop {\rm{N}}\limits^ \oplus {{\rm{H}}_{\rm{4}}}{\rm{ + }}\mathop {\rm{O}}\limits^ \ominus {\rm{H}}\\
{\rm{(k)N}}{{\rm{H}}_{\rm{3}}}{\rm{ + }}{{\rm{H}}_{\rm{2}}}{\rm{O}}{\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} \,{\mkern 1mu} {\rm{(l)}}{\mkern 1mu} {\rm{N}}{{\rm{H}}_{\rm{3}}} + {{\rm{H}}_{\rm{3}}}{{\rm{O}}^ \oplus }\\
{\rm{(m)}}{\mkern 1mu} {\rm{N}}{{\rm{H}}_{\rm{3}}}{\rm{ + HCl}}({\rm{aq}}){\mkern 1mu} {\mkern 1mu} \,{\rm{(n)}}{\mkern 1mu} {{\rm{K}}^ \oplus } + \mathop {\rm{O}}\limits^ \ominus {\rm{H}}
\end{array}\]

1 6

2 2

3 5

4 3

Explanation:

(a), (b), (g), (h) and (k)
\[{\begin{array}{*{20}{l}}
{({\text{a}}){\mkern 1mu} {\text{C}}{{\text{H}}_{\text{3}}}{\text{COOH + }}{{\text{H}}_{\text{2}}}{\text{O}} \to {{\text{H}}_{\text{3}}}{{\text{O}}^ \oplus }{\text{ + C}}{{\text{H}}_{\text{3}}}{\text{CO}}{{\text{O}}^ \ominus }{\mkern 1mu} ( < {\text{2}}\% )} \\
{{\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {{\text{W}}_{\text{A}}}{\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} {\mkern 1mu} } \\
{}
\end{array}}\]
(b)\({\rm{C}}{{\rm{H}}_{\rm{3}}}{\rm{CO}}{{\rm{O}}^ \ominus }{\rm{ + }}{{\rm{H}}_{\rm{2}}}{\rm{O}} \to {\rm{C}}{{\rm{H}}_{\rm{3}}}{\rm{COOH + }}\mathop {\rm{O}}\limits^ \ominus {\rm{H( < 2\% )}}\)
\({{\rm{Salt}}\,\,{\rm{of}}\,{{\rm{W}}_{\rm{A}}}}\)
\[{\begin{array}{*{20}{l}}
{({\rm{g}}){\rm{C}}{{\rm{l}}^ \ominus }{\rm{ + }}{{\rm{H}}_{\rm{3}}}{{\rm{O}}^ \oplus } \to {\rm{No}}{\mkern 1mu} {\rm{reaction}}}\\
{({\rm{h}}){\rm{C}}{{\rm{l}}^ \ominus }{\rm{ + }}{{\rm{H}}_{\rm{2}}}{\rm{O}} \to {\rm{No}}{\mkern 1mu} {\rm{reaction}}}\\
{({\rm{k}}){\rm{N}}{{\rm{H}}_{\rm{3}}}{\rm{ + }}{{\rm{H}}_{\rm{2}}}{\rm{O}} \to \mathop {\rm{N}}\limits^ \oplus {{\rm{H}}_{\rm{4}}}{\rm{ + }}\mathop {\rm{O}}\limits^ \ominus {\rm{H}}}\\
{({\rm{n)}}{{\rm{K}}^ \oplus }{\rm{ + }}\mathop {\rm{O}}\limits^ \ominus {\rm{H}} \to {\rm{No}}{\mkern 1mu} {\rm{reaction}}.}
\end{array}}\]

CHXI07:EQUILIBRIUM

314435 Which of the following species acts as Bronsted base but not as acid ?

1 \(\mathrm{CH}_{3} \mathrm{COOH}\)

2 \(\mathrm{HCO}_{3}^{-}\)

3 \(\mathrm{H}_{2} \mathrm{PO}_{2}^{-}\)

4 \(\mathrm{H}_{2} \mathrm{PO}_{3}^{-}\)

CHXI07:EQUILIBRIUM

314436 In \(\mathrm{HS}^{-}, \mathrm{I}^{-}, \mathrm{RNH}_{2}\) and \(\mathrm{NH}_{3}\) order of proton accepting tendency will be

1 \({{\text{I}}^ - } > {\text{N}}{{\text{H}}_3} > {\text{RN}}{{\text{H}}_2} > {\text{H}}{{\text{S}}^ - }\)

2 \(\mathrm{NH}_{3}>\mathrm{RNH}_{2}>\mathrm{HS}^{-}>\mathrm{I}^{-}\)

3 \(\mathrm{RNH}_{2}>\mathrm{NH}_{3}>\mathrm{HS}^{-}>\mathrm{I}^{-}\)

4 \(\mathrm{HS}^{-}>\mathrm{RNH}_{2}>\mathrm{NH}_{3}>\mathrm{I}^{-}\)

CHXI07:EQUILIBRIUM

314437 Ammonia gas dissolves in water to form \(\mathrm{NH}_{4} \mathrm{OH}\). In this reaction, water acts as

1 Conjugate base

2 A non - polar molecule

3 An acid

4 A base

AIIMS - 2012

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Question Bank Series